Construction Materials

231) The initial and final setting times of quick setting cement are

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5 minutes and 30 minutes

232) Quick setting cement is used

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for the Construction of structures under water

233) In the chemical composition test for loss on ignition, the cement is heated to a temperature of

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1000°C

234) Loss on ignition in cement should not exceed

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4%

235) The insoluble residues in good cement should be

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less than 1.5%

236) The Concrete mix used for general R.C.C. work is

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1:2:4

237) The paints used in aircrafts are

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cellulose paints

238) French polish is made by dissolving the resin

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in spirit

239) The varnish is essentially made of

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both (a) & (b)

240) Snowcem is

Discuss in Comment

a cement paint

Subject Notes

→ Hydraulics → Structural Design-RCC → Irrigation Engineering → Highway Engineering → Engineering Survey → Water supply & sanitary → Soil Mechanics → Mechanics and structure → Construction Management → Building Construction → Estimating and Costing → Engineering Drawing → Building Material → Airport Engineering

Objective Box

→ Airport Engineering → Building Construction → Construction Management → Construction Materials → Engineering Drawing → Engineering Survey → Estimating and Costing → Highway Engineering → Fluid & Hydraulics → Soil Mechanics → Structural Design - RCC → Water Supply and Sanitary → Irrigation Engineering → Mechanics and Structure → Civil MCQ Set 1 → Civil MCQ Set 2 → Civil MCQ Set 3 → Civil MCQ Set 4

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